92 lines
2.8 KiB
PHP
92 lines
2.8 KiB
PHP
<?php
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/**
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* Classname: WPScan\Checks\xmlrpcEnabled
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*/
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namespace WPScan\Checks;
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// Exit if accessed directly.
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defined( 'ABSPATH' ) || exit;
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/**
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* XMLrpcEnabled.
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*
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* Checks if XML-RPC is enabled.
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*
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* @since 1.0.0
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*/
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class xmlrpcEnabled extends Check {
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/**
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* Title.
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*
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* @since 1.0.0
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* @access public
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* @return string
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*/
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public function title() {
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return __( 'XML-RPC Enabled', 'wpscan' );
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}
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/**
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* Description.
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*
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* @since 1.0.0
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* @access public
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* @return string
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*/
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public function description() {
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return __( 'Check if the WordPress XML-RPC is enabled', 'wpscan' );
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}
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/**
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* Success message.
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*
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* @since 1.0.0
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* @access public
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* @return string
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*/
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public function success_message() {
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return __( 'XML-RPC was found to be disabled', 'wpscan' );
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}
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/**
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* Perform the check and save the results.
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*
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* @since 1.0.0
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* @access public
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* @return void
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*/
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public function perform() {
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$vulnerabilities = $this->get_vulnerabilities();
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$url = get_site_url() . '/xmlrpc.php';
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// First check if the xmlrpc.php file returns a 405 code.
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$is_available = wp_remote_get( $url, array( 'timeout' => 5 ) );
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$is_available_code = wp_remote_retrieve_response_code( $is_available );
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if ( 405 !== $is_available_code ) return;
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// Try an authenticated request.
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$authenticated_body = '<?xml version="1.0" encoding="iso-8859-1"?><methodCall><methodName>wp.getUsers</methodName><params><param><value>1</value></param><param><value>username</value></param><param><value>password</value></param></params></methodCall>';
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$authenticated_response = wp_remote_post( $url, array( 'body' => $authenticated_body ) );
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if ( is_wp_error( $authenticated_response ) ) {
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// The authenticated_response returned a WP_Error.
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error_log( $authenticated_response->get_error_message() );
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} else {
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if ( preg_match( '/<string>Incorrect username or password.<\/string>/', $authenticated_response['body'] ) ) {
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$this->add_vulnerability( __( 'The XML-RPC interface is enabled. This significantly increases your site\'s attack surface.', 'wpscan' ), 'medium', sanitize_title( $url ), 'https://blog.wpscan.com/2021/01/25/wordpress-xmlrpc-security.html' );
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return;
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} else {
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// Try an unauthenticated request.
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$unauthenticated_body = '<?xml version="1.0" encoding="iso-8859-1"?><methodCall><methodName>demo.sayHello</methodName><params><param></param></params></methodCall>';
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$unauthenticated_response = wp_remote_post( $url, array( 'body' => $unauthenticated_body ) );
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if ( preg_match( '/<string>Hello!<\/string>/', $unauthenticated_response['body'] ) ) {
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$this->add_vulnerability( __( 'The XML-RPC interface is partly disabled, but still allows unauthenticated requests.', 'wpscan' ), 'low', sanitize_title( $url ), 'https://blog.wpscan.com/2021/01/25/wordpress-xmlrpc-security.html' );
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}
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}
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}
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}
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}
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